The Boston Celtics seem to be already focused on theplayoffs, and now fans have another reason to, as well.A limited number of playoff tickets for Round 1, Games 1 and2, will go on sale Thursday, March 31 at 11 a.m.Fans will be able to purchase up to three tickets percustomer, starting at 12 per ticket. Dates of the games will not be announceduntil the end of the regular season.